Nothing to it.. Buy yourself a good service manual. For your flywheel rent a 3 jaw puller from autozone (it's free) then on the clutch side use an air impact to remove the center nuts. Then when the clutch and everything is removed and your ready to split the case, build a box out of 2x4's and lay the engine on the box with the clutch side down. Get a harmonic balancer puller or steering wheel puller and install it over the flywheel side of the crank case. Get yourself longer bolts to thread down through the puller to the stator bolt holes and torque the puller making sure you have grease under the puller where it meets the crankshaft.. it will split the case. The only place I used outside help was to remove the crank from the right side case. Cost 5 bucks at a local shop. For bearing replacement, heat the empty case in the oven or set it in front of a salamander heater. once hot tip it over and bearings should fall right out.. the mains may need tapped with a socket and hammer. For the install, heat the case up, pull the bearings from the freezer and drop them in.. when the case cools they are pressed in. For the crank shaft, first install it in the right side, find an alluminum slug or something that will fit into the center of the main bearing. heat it with a torch being carefull not to over heat it and turn it blue. once hot drop your FROZEN crank shaft into the bearing.. it will drop right in. Do the same to the left side cover and bearing, but this time have a block of wood and a mallet ready. Place the cover with the heated bearing over the crank and tap the two cases back together. Nothing to it. And when you reinstall all your gears and clutches to the side of the case you can use a penney to bind the gears to torque the bolt. But it will cost you $.01 as it will eat your penny. :) Give it a try, it'll be a good learning experience for you and your son. I assume your doing this to replace your crank shaft. Otherwise I would flush it out with solvant and call it a day.